Now we apply the AD-FMCOMMS2-EBZ connected with SYNOPSYS HAPS-70 platform with V7 FPGA on-board.
Qesttion 1: Is any driver of AD-FMCOMMS2-EBZ needed to worked with this FPGA platform
Since the on-board V7 FPGA supports V_Interface lower than 1.8 V and that is not match with the content configed in the EEPROM on AD-FMCOMMS2-EBZ. So we remove the EEPROM IC. The AD9361 IC now can receive 1.3 V from the on-board regulator and 1.8 V form VADJ FMC interface (supplied by FPGA).
Qesttion 2. : Is the AD9361 now ready to receive SPI commands? or any setting we should confirm or change?
We write a simple SPI commands following the SPI command format indicated in the reference mamual of AD9361. The SPI waveform including SPI_ENB, SPI_DIO, SPI_CLK (we use three-wires mode) can be detect successfully on the test point around FMC inteface on
AD-FMCOMMS2-EBZ, but the desired response output data from AD9360 can not be read on the SPI Bus.
Qesttion 3: Any setting we should confirm or change to build the SPI connection?
Thank you for your great help